| Name | Team | Time | FINA | Imp | |||
|---|---|---|---|---|---|---|---|
| 1 | Gillian Gagnard |
 Chicago Wolfpack Aquatic Club
|
1:06.90 | 656 | +0.2% | SB | |
| 2 | Sophie Benson |
 Funky Fish Swim Club
|
1:13.58 | 493 | – | ||
| 3 | Katherine Erickson |
Aberdeen Swim Club
|
1:15.98 | 448 | – | ||